Improved slide for extension-tables



dimensions.

UNITED STATESl PATENT OFFICE.

IMPROVED SCLIDE FOR EXTENSION-TABLES.

Specification forming part of' Letters Patent No. 47,374, dated April 25, 1865.

T0 @ZZ whom it may concern:

Be it known that I, ERAs'rUs P. ALLvN, of North Canaan, in the county of Litchield and State of Connecticut, have invented a new and Improved Slide for Extension-Tables; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a plan er top view of my invention in an extended state; Fig. 2, a plan or top view ot' the same in a closed state; Fig. 3, an end view of the same in a closed state; Fig. 4, an enlarged side view of one of the slides 5 Fig. 5, a transverse section of Fig. 4, taken in the line a' .t Fig. 6, an enlarged side view of a slide opposite to that shown in Fig. 4.

Similar letters of reference indicate like parts.

` This invention consists in having a series of slides of malleable cast-iron or other metal, and fitted together by means of dovetailed projections and grooves, and provided with stops, as hereinafter' fully shown and described, whereby a very economical and durable slide for the purpose specified is obtained, and the aiinoyances and embarrassments occasioned by the shrinking, swelling, and warping of the ordinary wooden slides avoided.

A represents a series of slides of malleable cast-iron or other metal, andof any suitable These slides are cast with a longitudinal projection, a, at one side, extending their whole length, and provided with dovet til edges b b, as shown more particularly in Figs. 4t and 5. At the opposite sides of the slides A there is a longitudinal recess, c, extending their whole length, and having dovetail edges d d, said recesses and dovetail edges corresponding to the projections4 a, and their dovetail edges b b, so that the projection a of one slide may tit into the recess c of the one adjoining it, and the whole series of slides thereby rendered capable of being closed eompactly together, as shown in Figs. 2 and 3, or drawn out or extended, as shown in Fig. l, the slides being prevented from parting laterally by means of the dovetail Y edges of the projections and recesses.

The length of the sliding movement of the several slides is determined by a pin, d', extending out from each projection a and iittin g in a narrow recess or groove, e, at the centtr ofthe recesses c. (See Figs. 4 and 6.) By this means the slides are prevented from being drawn out and disconnected from each other.

These slides A may be quite light and not be liable to break or bend, especially if cast from perfect patterns and iitted together in a workmanlike manner. They also may be cheaply manufactured, and will, it is believed,

ERASTUS P. ALLYN. Witnesses: j

M. M. LrvrNGsfroN, C. L. TorLIFF. 

